.online {
	display: inline-block;
    height: 16px;
    margin-right: 5px;
    vertical-align: middle;
    width: 16px;
	background: url(../img/online.png) no-repeat 0 0 transparent;
	text-indent:-1000em;
}
.online.on{
	background-position: 0 -16px;
	cursor:pointer;
}